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Avoid beyond bounds copy while caching ACL
[zen-stable.git] / drivers / media / video / s5p-mfc / s5p_mfc_dec.c
blobc25ec022d2678f734e46b1f1f3b5b0d496150c8d
1 /*
2 * linux/drivers/media/video/s5p-mfc/s5p_mfc_dec.c
3 *
4 * Copyright (C) 2011 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
6 * Kamil Debski, <k.debski@samsung.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14 #include <linux/clk.h>
15 #include <linux/interrupt.h>
16 #include <linux/io.h>
17 #include <linux/module.h>
18 #include <linux/platform_device.h>
19 #include <linux/sched.h>
20 #include <linux/slab.h>
21 #include <linux/version.h>
22 #include <linux/videodev2.h>
23 #include <linux/workqueue.h>
24 #include <media/v4l2-ctrls.h>
25 #include <media/videobuf2-core.h>
26 #include "regs-mfc.h"
27 #include "s5p_mfc_common.h"
28 #include "s5p_mfc_debug.h"
29 #include "s5p_mfc_dec.h"
30 #include "s5p_mfc_intr.h"
31 #include "s5p_mfc_opr.h"
32 #include "s5p_mfc_pm.h"
33 #include "s5p_mfc_shm.h"
34
35 static struct s5p_mfc_fmt formats[] = {
36 {
37 .name = "4:2:0 2 Planes 64x32 Tiles",
38 .fourcc = V4L2_PIX_FMT_NV12MT,
39 .codec_mode = S5P_FIMV_CODEC_NONE,
40 .type = MFC_FMT_RAW,
41 .num_planes = 2,
42 },
43 {
44 .name = "4:2:0 2 Planes",
45 .fourcc = V4L2_PIX_FMT_NV12M,
46 .codec_mode = S5P_FIMV_CODEC_NONE,
47 .type = MFC_FMT_RAW,
48 .num_planes = 2,
49 },
50 {
51 .name = "H264 Encoded Stream",
52 .fourcc = V4L2_PIX_FMT_H264,
53 .codec_mode = S5P_FIMV_CODEC_H264_DEC,
54 .type = MFC_FMT_DEC,
55 .num_planes = 1,
56 },
57 {
58 .name = "H263 Encoded Stream",
59 .fourcc = V4L2_PIX_FMT_H263,
60 .codec_mode = S5P_FIMV_CODEC_H263_DEC,
61 .type = MFC_FMT_DEC,
62 .num_planes = 1,
63 },
64 {
65 .name = "MPEG1 Encoded Stream",
66 .fourcc = V4L2_PIX_FMT_MPEG1,
67 .codec_mode = S5P_FIMV_CODEC_MPEG2_DEC,
68 .type = MFC_FMT_DEC,
69 .num_planes = 1,
70 },
71 {
72 .name = "MPEG2 Encoded Stream",
73 .fourcc = V4L2_PIX_FMT_MPEG2,
74 .codec_mode = S5P_FIMV_CODEC_MPEG2_DEC,
75 .type = MFC_FMT_DEC,
76 .num_planes = 1,
77 },
78 {
79 .name = "MPEG4 Encoded Stream",
80 .fourcc = V4L2_PIX_FMT_MPEG4,
81 .codec_mode = S5P_FIMV_CODEC_MPEG4_DEC,
82 .type = MFC_FMT_DEC,
83 .num_planes = 1,
84 },
85 {
86 .name = "XviD Encoded Stream",
87 .fourcc = V4L2_PIX_FMT_XVID,
88 .codec_mode = S5P_FIMV_CODEC_MPEG4_DEC,
89 .type = MFC_FMT_DEC,
90 .num_planes = 1,
91 },
92 {
93 .name = "VC1 Encoded Stream",
94 .fourcc = V4L2_PIX_FMT_VC1_ANNEX_G,
95 .codec_mode = S5P_FIMV_CODEC_VC1_DEC,
96 .type = MFC_FMT_DEC,
97 .num_planes = 1,
98 },
99 {
100 .name = "VC1 RCV Encoded Stream",
101 .fourcc = V4L2_PIX_FMT_VC1_ANNEX_L,
102 .codec_mode = S5P_FIMV_CODEC_VC1RCV_DEC,
103 .type = MFC_FMT_DEC,
104 .num_planes = 1,
105 },
106 };
107
108 #define NUM_FORMATS ARRAY_SIZE(formats)
109
110 /* Find selected format description */
111 static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
112 {
113 unsigned int i;
114
115 for (i = 0; i < NUM_FORMATS; i++) {
116 if (formats[i].fourcc == f->fmt.pix_mp.pixelformat &&
117 formats[i].type == t)
118 return &formats[i];
119 }
120 return NULL;
121 }
122
123 static struct mfc_control controls[] = {
124 {
125 .id = V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY,
126 .type = V4L2_CTRL_TYPE_INTEGER,
127 .name = "H264 Display Delay",
128 .minimum = 0,
129 .maximum = 16383,
130 .step = 1,
131 .default_value = 0,
132 },
133 {
134 .id = V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE,
135 .type = V4L2_CTRL_TYPE_BOOLEAN,
136 .name = "H264 Display Delay Enable",
137 .minimum = 0,
138 .maximum = 1,
139 .step = 1,
140 .default_value = 0,
141 },
142 {
143 .id = V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER,
144 .type = V4L2_CTRL_TYPE_BOOLEAN,
145 .name = "Mpeg4 Loop Filter Enable",
146 .minimum = 0,
147 .maximum = 1,
148 .step = 1,
149 .default_value = 0,
150 },
151 {
152 .id = V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE,
153 .type = V4L2_CTRL_TYPE_BOOLEAN,
154 .name = "Slice Interface Enable",
155 .minimum = 0,
156 .maximum = 1,
157 .step = 1,
158 .default_value = 0,
159 },
160 {
161 .id = V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
162 .type = V4L2_CTRL_TYPE_INTEGER,
163 .name = "Minimum number of cap bufs",
164 .minimum = 1,
165 .maximum = 32,
166 .step = 1,
167 .default_value = 1,
168 .is_volatile = 1,
169 },
170 };
171
172 #define NUM_CTRLS ARRAY_SIZE(controls)
173
174 /* Check whether a context should be run on hardware */
175 static int s5p_mfc_ctx_ready(struct s5p_mfc_ctx *ctx)
176 {
177 /* Context is to parse header */
178 if (ctx->src_queue_cnt >= 1 && ctx->state == MFCINST_GOT_INST)
179 return 1;
180 /* Context is to decode a frame */
181 if (ctx->src_queue_cnt >= 1 &&
182 ctx->state == MFCINST_RUNNING &&
183 ctx->dst_queue_cnt >= ctx->dpb_count)
184 return 1;
185 /* Context is to return last frame */
186 if (ctx->state == MFCINST_FINISHING &&
187 ctx->dst_queue_cnt >= ctx->dpb_count)
188 return 1;
189 /* Context is to set buffers */
190 if (ctx->src_queue_cnt >= 1 &&
191 ctx->state == MFCINST_HEAD_PARSED &&
192 ctx->capture_state == QUEUE_BUFS_MMAPED)
193 return 1;
194 /* Resolution change */
195 if ((ctx->state == MFCINST_RES_CHANGE_INIT ||
196 ctx->state == MFCINST_RES_CHANGE_FLUSH) &&
197 ctx->dst_queue_cnt >= ctx->dpb_count)
198 return 1;
199 if (ctx->state == MFCINST_RES_CHANGE_END &&
200 ctx->src_queue_cnt >= 1)
201 return 1;
202 mfc_debug(2, "ctx is not ready\n");
203 return 0;
204 }
205
206 static struct s5p_mfc_codec_ops decoder_codec_ops = {
207 .pre_seq_start = NULL,
208 .post_seq_start = NULL,
209 .pre_frame_start = NULL,
210 .post_frame_start = NULL,
211 };
212
213 /* Query capabilities of the device */
214 static int vidioc_querycap(struct file *file, void *priv,
215 struct v4l2_capability *cap)
216 {
217 struct s5p_mfc_dev *dev = video_drvdata(file);
218
219 strncpy(cap->driver, dev->plat_dev->name, sizeof(cap->driver) - 1);
220 strncpy(cap->card, dev->plat_dev->name, sizeof(cap->card) - 1);
221 cap->bus_info[0] = 0;
222 cap->version = KERNEL_VERSION(1, 0, 0);
223 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE_MPLANE |
224 V4L2_CAP_VIDEO_OUTPUT_MPLANE | V4L2_CAP_STREAMING;
225 return 0;
226 }
227
228 /* Enumerate format */
229 static int vidioc_enum_fmt(struct v4l2_fmtdesc *f, bool mplane, bool out)
230 {
231 struct s5p_mfc_fmt *fmt;
232 int i, j = 0;
233
234 for (i = 0; i < ARRAY_SIZE(formats); ++i) {
235 if (mplane && formats[i].num_planes == 1)
236 continue;
237 else if (!mplane && formats[i].num_planes > 1)
238 continue;
239 if (out && formats[i].type != MFC_FMT_DEC)
240 continue;
241 else if (!out && formats[i].type != MFC_FMT_RAW)
242 continue;
243
244 if (j == f->index)
245 break;
246 ++j;
247 }
248 if (i == ARRAY_SIZE(formats))
249 return -EINVAL;
250 fmt = &formats[i];
251 strlcpy(f->description, fmt->name, sizeof(f->description));
252 f->pixelformat = fmt->fourcc;
253 return 0;
254 }
255
256 static int vidioc_enum_fmt_vid_cap(struct file *file, void *pirv,
257 struct v4l2_fmtdesc *f)
258 {
259 return vidioc_enum_fmt(f, false, false);
260 }
261
262 static int vidioc_enum_fmt_vid_cap_mplane(struct file *file, void *pirv,
263 struct v4l2_fmtdesc *f)
264 {
265 return vidioc_enum_fmt(f, true, false);
266 }
267
268 static int vidioc_enum_fmt_vid_out(struct file *file, void *prov,
269 struct v4l2_fmtdesc *f)
270 {
271 return vidioc_enum_fmt(f, false, true);
272 }
273
274 static int vidioc_enum_fmt_vid_out_mplane(struct file *file, void *prov,
275 struct v4l2_fmtdesc *f)
276 {
277 return vidioc_enum_fmt(f, true, true);
278 }
279
280 /* Get format */
281 static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
282 {
283 struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
284 struct v4l2_pix_format_mplane *pix_mp;
285
286 mfc_debug_enter();
287 pix_mp = &f->fmt.pix_mp;
288 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
289 (ctx->state == MFCINST_GOT_INST || ctx->state ==
290 MFCINST_RES_CHANGE_END)) {
291 /* If the MFC is parsing the header,
292 * so wait until it is finished */
293 s5p_mfc_clean_ctx_int_flags(ctx);
294 s5p_mfc_wait_for_done_ctx(ctx, S5P_FIMV_R2H_CMD_SEQ_DONE_RET,
295 0);
296 }
297 if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
298 ctx->state >= MFCINST_HEAD_PARSED &&
299 ctx->state < MFCINST_ABORT) {
300 /* This is run on CAPTURE (decode output) */
301 /* Width and height are set to the dimensions
302 of the movie, the buffer is bigger and
303 further processing stages should crop to this
304 rectangle. */
305 pix_mp->width = ctx->buf_width;
306 pix_mp->height = ctx->buf_height;
307 pix_mp->field = V4L2_FIELD_NONE;
308 pix_mp->num_planes = 2;
309 /* Set pixelformat to the format in which MFC
310 outputs the decoded frame */
311 pix_mp->pixelformat = V4L2_PIX_FMT_NV12MT;
312 pix_mp->plane_fmt[0].bytesperline = ctx->buf_width;
313 pix_mp->plane_fmt[0].sizeimage = ctx->luma_size;
314 pix_mp->plane_fmt[1].bytesperline = ctx->buf_width;
315 pix_mp->plane_fmt[1].sizeimage = ctx->chroma_size;
316 } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
317 /* This is run on OUTPUT
318 The buffer contains compressed image
319 so width and height have no meaning */
320 pix_mp->width = 0;
321 pix_mp->height = 0;
322 pix_mp->field = V4L2_FIELD_NONE;
323 pix_mp->plane_fmt[0].bytesperline = ctx->dec_src_buf_size;
324 pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size;
325 pix_mp->pixelformat = ctx->src_fmt->fourcc;
326 pix_mp->num_planes = ctx->src_fmt->num_planes;
327 } else {
328 mfc_err("Format could not be read\n");
329 mfc_debug(2, "%s-- with error\n", __func__);
330 return -EINVAL;
331 }
332 mfc_debug_leave();
333 return 0;
334 }
335
336 /* Try format */
337 static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
338 {
339 struct s5p_mfc_fmt *fmt;
340
341 if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
342 mfc_err("This node supports decoding only\n");
343 return -EINVAL;
344 }
345 fmt = find_format(f, MFC_FMT_DEC);
346 if (!fmt) {
347 mfc_err("Unsupported format\n");
348 return -EINVAL;
349 }
350 if (fmt->type != MFC_FMT_DEC) {
351 mfc_err("\n");
352 return -EINVAL;
353 }
354 return 0;
355 }
356
357 /* Set format */
358 static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
359 {
360 struct s5p_mfc_dev *dev = video_drvdata(file);
361 struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
362 int ret = 0;
363 struct s5p_mfc_fmt *fmt;
364 struct v4l2_pix_format_mplane *pix_mp;
365
366 mfc_debug_enter();
367 ret = vidioc_try_fmt(file, priv, f);
368 pix_mp = &f->fmt.pix_mp;
369 if (ret)
370 return ret;
371 if (ctx->vq_src.streaming || ctx->vq_dst.streaming) {
372 v4l2_err(&dev->v4l2_dev, "%s queue busy\n", __func__);
373 ret = -EBUSY;
374 goto out;
375 }
376 fmt = find_format(f, MFC_FMT_DEC);
377 if (!fmt || fmt->codec_mode == S5P_FIMV_CODEC_NONE) {
378 mfc_err("Unknown codec\n");
379 ret = -EINVAL;
380 goto out;
381 }
382 if (fmt->type != MFC_FMT_DEC) {
383 mfc_err("Wrong format selected, you should choose "
384 "format for decoding\n");
385 ret = -EINVAL;
386 goto out;
387 }
388 ctx->src_fmt = fmt;
389 ctx->codec_mode = fmt->codec_mode;
390 mfc_debug(2, "The codec number is: %d\n", ctx->codec_mode);
391 pix_mp->height = 0;
392 pix_mp->width = 0;
393 if (pix_mp->plane_fmt[0].sizeimage)
394 ctx->dec_src_buf_size = pix_mp->plane_fmt[0].sizeimage;
395 else
396 pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size =
397 DEF_CPB_SIZE;
398 pix_mp->plane_fmt[0].bytesperline = 0;
399 ctx->state = MFCINST_INIT;
400 out:
401 mfc_debug_leave();
402 return ret;
403 }
404
405 /* Reqeust buffers */
406 static int vidioc_reqbufs(struct file *file, void *priv,
407 struct v4l2_requestbuffers *reqbufs)
408 {
409 struct s5p_mfc_dev *dev = video_drvdata(file);
410 struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
411 int ret = 0;
412 unsigned long flags;
413
414 if (reqbufs->memory != V4L2_MEMORY_MMAP) {
415 mfc_err("Only V4L2_MEMORY_MAP is supported\n");
416 return -EINVAL;
417 }
418 if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
419 /* Can only request buffers after an instance has been opened.*/
420 if (ctx->state == MFCINST_INIT) {
421 ctx->src_bufs_cnt = 0;
422 if (reqbufs->count == 0) {
423 mfc_debug(2, "Freeing buffers\n");
424 s5p_mfc_clock_on();
425 ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
426 s5p_mfc_clock_off();
427 return ret;
428 }
429 /* Decoding */
430 if (ctx->output_state != QUEUE_FREE) {
431 mfc_err("Bufs have already been requested\n");
432 return -EINVAL;
433 }
434 s5p_mfc_clock_on();
435 ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
436 s5p_mfc_clock_off();
437 if (ret) {
438 mfc_err("vb2_reqbufs on output failed\n");
439 return ret;
440 }
441 mfc_debug(2, "vb2_reqbufs: %d\n", ret);
442 ctx->output_state = QUEUE_BUFS_REQUESTED;
443 }
444 } else if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
445 ctx->dst_bufs_cnt = 0;
446 if (reqbufs->count == 0) {
447 mfc_debug(2, "Freeing buffers\n");
448 s5p_mfc_clock_on();
449 ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
450 s5p_mfc_clock_off();
451 return ret;
452 }
453 if (ctx->capture_state != QUEUE_FREE) {
454 mfc_err("Bufs have already been requested\n");
455 return -EINVAL;
456 }
457 ctx->capture_state = QUEUE_BUFS_REQUESTED;
458 s5p_mfc_clock_on();
459 ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
460 s5p_mfc_clock_off();
461 if (ret) {
462 mfc_err("vb2_reqbufs on capture failed\n");
463 return ret;
464 }
465 if (reqbufs->count < ctx->dpb_count) {
466 mfc_err("Not enough buffers allocated\n");
467 reqbufs->count = 0;
468 s5p_mfc_clock_on();
469 ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
470 s5p_mfc_clock_off();
471 return -ENOMEM;
472 }
473 ctx->total_dpb_count = reqbufs->count;
474 ret = s5p_mfc_alloc_codec_buffers(ctx);
475 if (ret) {
476 mfc_err("Failed to allocate decoding buffers\n");
477 reqbufs->count = 0;
478 s5p_mfc_clock_on();
479 ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
480 s5p_mfc_clock_off();
481 return -ENOMEM;
482 }
483 if (ctx->dst_bufs_cnt == ctx->total_dpb_count) {
484 ctx->capture_state = QUEUE_BUFS_MMAPED;
485 } else {
486 mfc_err("Not all buffers passed to buf_init\n");
487 reqbufs->count = 0;
488 s5p_mfc_clock_on();
489 ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
490 s5p_mfc_release_codec_buffers(ctx);
491 s5p_mfc_clock_off();
492 return -ENOMEM;
493 }
494 if (s5p_mfc_ctx_ready(ctx)) {
495 spin_lock_irqsave(&dev->condlock, flags);
496 set_bit(ctx->num, &dev->ctx_work_bits);
497 spin_unlock_irqrestore(&dev->condlock, flags);
498 }
499 s5p_mfc_try_run(dev);
500 s5p_mfc_wait_for_done_ctx(ctx,
501 S5P_FIMV_R2H_CMD_INIT_BUFFERS_RET, 0);
502 }
503 return ret;
504 }
505
506 /* Query buffer */
507 static int vidioc_querybuf(struct file *file, void *priv,
508 struct v4l2_buffer *buf)
509 {
510 struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
511 int ret;
512 int i;
513
514 if (buf->memory != V4L2_MEMORY_MMAP) {
515 mfc_err("Only mmaped buffers can be used\n");
516 return -EINVAL;
517 }
518 mfc_debug(2, "State: %d, buf->type: %d\n", ctx->state, buf->type);
519 if (ctx->state == MFCINST_INIT &&
520 buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
521 ret = vb2_querybuf(&ctx->vq_src, buf);
522 } else if (ctx->state == MFCINST_RUNNING &&
523 buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
524 ret = vb2_querybuf(&ctx->vq_dst, buf);
525 for (i = 0; i < buf->length; i++)
526 buf->m.planes[i].m.mem_offset += DST_QUEUE_OFF_BASE;
527 } else {
528 mfc_err("vidioc_querybuf called in an inappropriate state\n");
529 ret = -EINVAL;
530 }
531 mfc_debug_leave();
532 return ret;
533 }
534
535 /* Queue a buffer */
536 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
537 {
538 struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
539
540 if (ctx->state == MFCINST_ERROR) {
541 mfc_err("Call on QBUF after unrecoverable error\n");
542 return -EIO;
543 }
544 if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
545 return vb2_qbuf(&ctx->vq_src, buf);
546 else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
547 return vb2_qbuf(&ctx->vq_dst, buf);
548 return -EINVAL;
549 }
550
551 /* Dequeue a buffer */
552 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
553 {
554 struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
555
556 if (ctx->state == MFCINST_ERROR) {
557 mfc_err("Call on DQBUF after unrecoverable error\n");
558 return -EIO;
559 }
560 if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
561 return vb2_dqbuf(&ctx->vq_src, buf, file->f_flags & O_NONBLOCK);
562 else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
563 return vb2_dqbuf(&ctx->vq_dst, buf, file->f_flags & O_NONBLOCK);
564 return -EINVAL;
565 }
566
567 /* Stream on */
568 static int vidioc_streamon(struct file *file, void *priv,
569 enum v4l2_buf_type type)
570 {
571 struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
572 struct s5p_mfc_dev *dev = ctx->dev;
573 unsigned long flags;
574 int ret = -EINVAL;
575
576 mfc_debug_enter();
577 if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
578
579 if (ctx->state == MFCINST_INIT) {
580 ctx->dst_bufs_cnt = 0;
581 ctx->src_bufs_cnt = 0;
582 ctx->capture_state = QUEUE_FREE;
583 ctx->output_state = QUEUE_FREE;
584 s5p_mfc_alloc_instance_buffer(ctx);
585 s5p_mfc_alloc_dec_temp_buffers(ctx);
586 spin_lock_irqsave(&dev->condlock, flags);
587 set_bit(ctx->num, &dev->ctx_work_bits);
588 spin_unlock_irqrestore(&dev->condlock, flags);
589 s5p_mfc_clean_ctx_int_flags(ctx);
590 s5p_mfc_try_run(dev);
591
592 if (s5p_mfc_wait_for_done_ctx(ctx,
593 S5P_FIMV_R2H_CMD_OPEN_INSTANCE_RET, 0)) {
594 /* Error or timeout */
595 mfc_err("Error getting instance from hardware\n");
596 s5p_mfc_release_instance_buffer(ctx);
597 s5p_mfc_release_dec_desc_buffer(ctx);
598 return -EIO;
599 }
600 mfc_debug(2, "Got instance number: %d\n", ctx->inst_no);
601 }
602 ret = vb2_streamon(&ctx->vq_src, type);
603 }
604 else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
605 ret = vb2_streamon(&ctx->vq_dst, type);
606 mfc_debug_leave();
607 return ret;
608 }
609
610 /* Stream off, which equals to a pause */
611 static int vidioc_streamoff(struct file *file, void *priv,
612 enum v4l2_buf_type type)
613 {
614 struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
615
616 if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
617 return vb2_streamoff(&ctx->vq_src, type);
618 else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
619 return vb2_streamoff(&ctx->vq_dst, type);
620 return -EINVAL;
621 }
622
623 /* Set controls - v4l2 control framework */
624 static int s5p_mfc_dec_s_ctrl(struct v4l2_ctrl *ctrl)
625 {
626 struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
627
628 switch (ctrl->id) {
629 case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY:
630 ctx->loop_filter_mpeg4 = ctrl->val;
631 break;
632 case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE:
633 ctx->display_delay_enable = ctrl->val;
634 break;
635 case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER:
636 ctx->display_delay = ctrl->val;
637 break;
638 case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE:
639 ctx->slice_interface = ctrl->val;
640 break;
641 default:
642 mfc_err("Invalid control 0x%08x\n", ctrl->id);
643 return -EINVAL;
644 }
645 return 0;
646 }
647
648 static int s5p_mfc_dec_g_v_ctrl(struct v4l2_ctrl *ctrl)
649 {
650 struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
651 struct s5p_mfc_dev *dev = ctx->dev;
652
653 switch (ctrl->id) {
654 case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
655 if (ctx->state >= MFCINST_HEAD_PARSED &&
656 ctx->state < MFCINST_ABORT) {
657 ctrl->val = ctx->dpb_count;
658 break;
659 } else if (ctx->state != MFCINST_INIT) {
660 v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
661 return -EINVAL;
662 }
663 /* Should wait for the header to be parsed */
664 s5p_mfc_clean_ctx_int_flags(ctx);
665 s5p_mfc_wait_for_done_ctx(ctx,
666 S5P_FIMV_R2H_CMD_SEQ_DONE_RET, 0);
667 if (ctx->state >= MFCINST_HEAD_PARSED &&
668 ctx->state < MFCINST_ABORT) {
669 ctrl->val = ctx->dpb_count;
670 } else {
671 v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
672 return -EINVAL;
673 }
674 break;
675 }
676 return 0;
677 }
678
679
680 static const struct v4l2_ctrl_ops s5p_mfc_dec_ctrl_ops = {
681 .s_ctrl = s5p_mfc_dec_s_ctrl,
682 .g_volatile_ctrl = s5p_mfc_dec_g_v_ctrl,
683 };
684
685 /* Get cropping information */
686 static int vidioc_g_crop(struct file *file, void *priv,
687 struct v4l2_crop *cr)
688 {
689 struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
690 u32 left, right, top, bottom;
691
692 if (ctx->state != MFCINST_HEAD_PARSED &&
693 ctx->state != MFCINST_RUNNING && ctx->state != MFCINST_FINISHING
694 && ctx->state != MFCINST_FINISHED) {
695 mfc_err("Cannont set crop\n");
696 return -EINVAL;
697 }
698 if (ctx->src_fmt->fourcc == V4L2_PIX_FMT_H264) {
699 left = s5p_mfc_read_shm(ctx, CROP_INFO_H);
700 right = left >> S5P_FIMV_SHARED_CROP_RIGHT_SHIFT;
701 left = left & S5P_FIMV_SHARED_CROP_LEFT_MASK;
702 top = s5p_mfc_read_shm(ctx, CROP_INFO_V);
703 bottom = top >> S5P_FIMV_SHARED_CROP_BOTTOM_SHIFT;
704 top = top & S5P_FIMV_SHARED_CROP_TOP_MASK;
705 cr->c.left = left;
706 cr->c.top = top;
707 cr->c.width = ctx->img_width - left - right;
708 cr->c.height = ctx->img_height - top - bottom;
709 mfc_debug(2, "Cropping info [h264]: l=%d t=%d "
710 "w=%d h=%d (r=%d b=%d fw=%d fh=%d\n", left, top,
711 cr->c.width, cr->c.height, right, bottom,
712 ctx->buf_width, ctx->buf_height);
713 } else {
714 cr->c.left = 0;
715 cr->c.top = 0;
716 cr->c.width = ctx->img_width;
717 cr->c.height = ctx->img_height;
718 mfc_debug(2, "Cropping info: w=%d h=%d fw=%d "
719 "fh=%d\n", cr->c.width, cr->c.height, ctx->buf_width,
720 ctx->buf_height);
721 }
722 return 0;
723 }
724
725 /* v4l2_ioctl_ops */
726 static const struct v4l2_ioctl_ops s5p_mfc_dec_ioctl_ops = {
727 .vidioc_querycap = vidioc_querycap,
728 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
729 .vidioc_enum_fmt_vid_cap_mplane = vidioc_enum_fmt_vid_cap_mplane,
730 .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
731 .vidioc_enum_fmt_vid_out_mplane = vidioc_enum_fmt_vid_out_mplane,
732 .vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt,
733 .vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt,
734 .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt,
735 .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt,
736 .vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt,
737 .vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt,
738 .vidioc_reqbufs = vidioc_reqbufs,
739 .vidioc_querybuf = vidioc_querybuf,
740 .vidioc_qbuf = vidioc_qbuf,
741 .vidioc_dqbuf = vidioc_dqbuf,
742 .vidioc_streamon = vidioc_streamon,
743 .vidioc_streamoff = vidioc_streamoff,
744 .vidioc_g_crop = vidioc_g_crop,
745 };
746
747 static int s5p_mfc_queue_setup(struct vb2_queue *vq,
748 const struct v4l2_format *fmt, unsigned int *buf_count,
749 unsigned int *plane_count, unsigned int psize[],
750 void *allocators[])
751 {
752 struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
753
754 /* Video output for decoding (source)
755 * this can be set after getting an instance */
756 if (ctx->state == MFCINST_INIT &&
757 vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
758 /* A single plane is required for input */
759 *plane_count = 1;
760 if (*buf_count < 1)
761 *buf_count = 1;
762 if (*buf_count > MFC_MAX_BUFFERS)
763 *buf_count = MFC_MAX_BUFFERS;
764 /* Video capture for decoding (destination)
765 * this can be set after the header was parsed */
766 } else if (ctx->state == MFCINST_HEAD_PARSED &&
767 vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
768 /* Output plane count is 2 - one for Y and one for CbCr */
769 *plane_count = 2;
770 /* Setup buffer count */
771 if (*buf_count < ctx->dpb_count)
772 *buf_count = ctx->dpb_count;
773 if (*buf_count > ctx->dpb_count + MFC_MAX_EXTRA_DPB)
774 *buf_count = ctx->dpb_count + MFC_MAX_EXTRA_DPB;
775 if (*buf_count > MFC_MAX_BUFFERS)
776 *buf_count = MFC_MAX_BUFFERS;
777 } else {
778 mfc_err("State seems invalid. State = %d, vq->type = %d\n",
779 ctx->state, vq->type);
780 return -EINVAL;
781 }
782 mfc_debug(2, "Buffer count=%d, plane count=%d\n",
783 *buf_count, *plane_count);
784 if (ctx->state == MFCINST_HEAD_PARSED &&
785 vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
786 psize[0] = ctx->luma_size;
787 psize[1] = ctx->chroma_size;
788 allocators[0] = ctx->dev->alloc_ctx[MFC_BANK2_ALLOC_CTX];
789 allocators[1] = ctx->dev->alloc_ctx[MFC_BANK1_ALLOC_CTX];
790 } else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
791 ctx->state == MFCINST_INIT) {
792 psize[0] = ctx->dec_src_buf_size;
793 allocators[0] = ctx->dev->alloc_ctx[MFC_BANK1_ALLOC_CTX];
794 } else {
795 mfc_err("This video node is dedicated to decoding. Decoding not initalised\n");
796 return -EINVAL;
797 }
798 return 0;
799 }
800
801 static void s5p_mfc_unlock(struct vb2_queue *q)
802 {
803 struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
804 struct s5p_mfc_dev *dev = ctx->dev;
805
806 mutex_unlock(&dev->mfc_mutex);
807 }
808
809 static void s5p_mfc_lock(struct vb2_queue *q)
810 {
811 struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
812 struct s5p_mfc_dev *dev = ctx->dev;
813
814 mutex_lock(&dev->mfc_mutex);
815 }
816
817 static int s5p_mfc_buf_init(struct vb2_buffer *vb)
818 {
819 struct vb2_queue *vq = vb->vb2_queue;
820 struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
821 unsigned int i;
822
823 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
824 if (ctx->capture_state == QUEUE_BUFS_MMAPED)
825 return 0;
826 for (i = 0; i <= ctx->src_fmt->num_planes ; i++) {
827 if (IS_ERR_OR_NULL(ERR_PTR(
828 vb2_dma_contig_plane_dma_addr(vb, i)))) {
829 mfc_err("Plane mem not allocated\n");
830 return -EINVAL;
831 }
832 }
833 if (vb2_plane_size(vb, 0) < ctx->luma_size ||
834 vb2_plane_size(vb, 1) < ctx->chroma_size) {
835 mfc_err("Plane buffer (CAPTURE) is too small\n");
836 return -EINVAL;
837 }
838 i = vb->v4l2_buf.index;
839 ctx->dst_bufs[i].b = vb;
840 ctx->dst_bufs[i].cookie.raw.luma =
841 vb2_dma_contig_plane_dma_addr(vb, 0);
842 ctx->dst_bufs[i].cookie.raw.chroma =
843 vb2_dma_contig_plane_dma_addr(vb, 1);
844 ctx->dst_bufs_cnt++;
845 } else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
846 if (IS_ERR_OR_NULL(ERR_PTR(
847 vb2_dma_contig_plane_dma_addr(vb, 0)))) {
848 mfc_err("Plane memory not allocated\n");
849 return -EINVAL;
850 }
851 if (vb2_plane_size(vb, 0) < ctx->dec_src_buf_size) {
852 mfc_err("Plane buffer (OUTPUT) is too small\n");
853 return -EINVAL;
854 }
855
856 i = vb->v4l2_buf.index;
857 ctx->src_bufs[i].b = vb;
858 ctx->src_bufs[i].cookie.stream =
859 vb2_dma_contig_plane_dma_addr(vb, 0);
860 ctx->src_bufs_cnt++;
861 } else {
862 mfc_err("s5p_mfc_buf_init: unknown queue type\n");
863 return -EINVAL;
864 }
865 return 0;
866 }
867
868 static int s5p_mfc_start_streaming(struct vb2_queue *q, unsigned int count)
869 {
870 struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
871 struct s5p_mfc_dev *dev = ctx->dev;
872 unsigned long flags;
873
874 v4l2_ctrl_handler_setup(&ctx->ctrl_handler);
875 if (ctx->state == MFCINST_FINISHING ||
876 ctx->state == MFCINST_FINISHED)
877 ctx->state = MFCINST_RUNNING;
878 /* If context is ready then dev = work->data;schedule it to run */
879 if (s5p_mfc_ctx_ready(ctx)) {
880 spin_lock_irqsave(&dev->condlock, flags);
881 set_bit(ctx->num, &dev->ctx_work_bits);
882 spin_unlock_irqrestore(&dev->condlock, flags);
883 }
884 s5p_mfc_try_run(dev);
885 return 0;
886 }
887
888 static int s5p_mfc_stop_streaming(struct vb2_queue *q)
889 {
890 unsigned long flags;
891 struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
892 struct s5p_mfc_dev *dev = ctx->dev;
893 int aborted = 0;
894
895 if ((ctx->state == MFCINST_FINISHING ||
896 ctx->state == MFCINST_RUNNING) &&
897 dev->curr_ctx == ctx->num && dev->hw_lock) {
898 ctx->state = MFCINST_ABORT;
899 s5p_mfc_wait_for_done_ctx(ctx,
900 S5P_FIMV_R2H_CMD_FRAME_DONE_RET, 0);
901 aborted = 1;
902 }
903 spin_lock_irqsave(&dev->irqlock, flags);
904 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
905 s5p_mfc_cleanup_queue(&ctx->dst_queue, &ctx->vq_dst);
906 INIT_LIST_HEAD(&ctx->dst_queue);
907 ctx->dst_queue_cnt = 0;
908 ctx->dpb_flush_flag = 1;
909 ctx->dec_dst_flag = 0;
910 }
911 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
912 s5p_mfc_cleanup_queue(&ctx->src_queue, &ctx->vq_src);
913 INIT_LIST_HEAD(&ctx->src_queue);
914 ctx->src_queue_cnt = 0;
915 }
916 if (aborted)
917 ctx->state = MFCINST_RUNNING;
918 spin_unlock_irqrestore(&dev->irqlock, flags);
919 return 0;
920 }
921
922
923 static void s5p_mfc_buf_queue(struct vb2_buffer *vb)
924 {
925 struct vb2_queue *vq = vb->vb2_queue;
926 struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
927 struct s5p_mfc_dev *dev = ctx->dev;
928 unsigned long flags;
929 struct s5p_mfc_buf *mfc_buf;
930
931 if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
932 mfc_buf = &ctx->src_bufs[vb->v4l2_buf.index];
933 mfc_buf->used = 0;
934 spin_lock_irqsave(&dev->irqlock, flags);
935 list_add_tail(&mfc_buf->list, &ctx->src_queue);
936 ctx->src_queue_cnt++;
937 spin_unlock_irqrestore(&dev->irqlock, flags);
938 } else if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
939 mfc_buf = &ctx->dst_bufs[vb->v4l2_buf.index];
940 mfc_buf->used = 0;
941 /* Mark destination as available for use by MFC */
942 spin_lock_irqsave(&dev->irqlock, flags);
943 set_bit(vb->v4l2_buf.index, &ctx->dec_dst_flag);
944 list_add_tail(&mfc_buf->list, &ctx->dst_queue);
945 ctx->dst_queue_cnt++;
946 spin_unlock_irqrestore(&dev->irqlock, flags);
947 } else {
948 mfc_err("Unsupported buffer type (%d)\n", vq->type);
949 }
950 if (s5p_mfc_ctx_ready(ctx)) {
951 spin_lock_irqsave(&dev->condlock, flags);
952 set_bit(ctx->num, &dev->ctx_work_bits);
953 spin_unlock_irqrestore(&dev->condlock, flags);
954 }
955 s5p_mfc_try_run(dev);
956 }
957
958 static struct vb2_ops s5p_mfc_dec_qops = {
959 .queue_setup = s5p_mfc_queue_setup,
960 .wait_prepare = s5p_mfc_unlock,
961 .wait_finish = s5p_mfc_lock,
962 .buf_init = s5p_mfc_buf_init,
963 .start_streaming = s5p_mfc_start_streaming,
964 .stop_streaming = s5p_mfc_stop_streaming,
965 .buf_queue = s5p_mfc_buf_queue,
966 };
967
968 struct s5p_mfc_codec_ops *get_dec_codec_ops(void)
969 {
970 return &decoder_codec_ops;
971 }
972
973 struct vb2_ops *get_dec_queue_ops(void)
974 {
975 return &s5p_mfc_dec_qops;
976 }
977
978 const struct v4l2_ioctl_ops *get_dec_v4l2_ioctl_ops(void)
979 {
980 return &s5p_mfc_dec_ioctl_ops;
981 }
982
983 #define IS_MFC51_PRIV(x) ((V4L2_CTRL_ID2CLASS(x) == V4L2_CTRL_CLASS_MPEG) \
984 && V4L2_CTRL_DRIVER_PRIV(x))
985
986 int s5p_mfc_dec_ctrls_setup(struct s5p_mfc_ctx *ctx)
987 {
988 struct v4l2_ctrl_config cfg;
989 int i;
990
991 v4l2_ctrl_handler_init(&ctx->ctrl_handler, NUM_CTRLS);
992 if (ctx->ctrl_handler.error) {
993 mfc_err("v4l2_ctrl_handler_init failed\n");
994 return ctx->ctrl_handler.error;
995 }
996
997 for (i = 0; i < NUM_CTRLS; i++) {
998 if (IS_MFC51_PRIV(controls[i].id)) {
999 cfg.ops = &s5p_mfc_dec_ctrl_ops;
1000 cfg.id = controls[i].id;
1001 cfg.min = controls[i].minimum;
1002 cfg.max = controls[i].maximum;
1003 cfg.def = controls[i].default_value;
1004 cfg.name = controls[i].name;
1005 cfg.type = controls[i].type;
1006
1007 cfg.step = controls[i].step;
1008 cfg.menu_skip_mask = 0;
1009
1010 ctx->ctrls[i] = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
1011 &cfg, NULL);
1012 } else {
1013 ctx->ctrls[i] = v4l2_ctrl_new_std(&ctx->ctrl_handler,
1014 &s5p_mfc_dec_ctrl_ops,
1015 controls[i].id, controls[i].minimum,
1016 controls[i].maximum, controls[i].step,
1017 controls[i].default_value);
1018 }
1019 if (ctx->ctrl_handler.error) {
1020 mfc_err("Adding control (%d) failed\n", i);
1021 return ctx->ctrl_handler.error;
1022 }
1023 if (controls[i].is_volatile && ctx->ctrls[i])
1024 ctx->ctrls[i]->flags |= V4L2_CTRL_FLAG_VOLATILE;
1025 }
1026 return 0;
1027 }
1028
1029 void s5p_mfc_dec_ctrls_delete(struct s5p_mfc_ctx *ctx)
1030 {
1031 int i;
1032
1033 v4l2_ctrl_handler_free(&ctx->ctrl_handler);
1034 for (i = 0; i < NUM_CTRLS; i++)
1035 ctx->ctrls[i] = NULL;
1036 }
1037